Self-Seating Clamp Assembly for Profiled Rail Attachment

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Solution Overview

Problem

Existing rail attachment solutions for firearms are not adequately robust or versatile, particularly for supplemental devices like grenade launchers, as they often rely on a one-size-fits-most approach that fails to accommodate varying dimensional tolerances and can compromise functionality and ergonomics.

Innovation Solution

A device with a body and clamp assembly that includes a self-seating clamping block, allowing for reliable attachment to profiled rails with adjustable clamping elements that can accommodate a range of dimensional tolerances, ensuring secure and flexible attachment of supplemental devices.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a one-size-fits-most rail attachment solution is used, then device complexity is reduced, but reliability deteriorates due to inability to accommodate varying dimensional tolerances

Engineering Contradiction:
Improveattachment reliabilityVSAvoidattachment mechanism complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The clamping block is designed to be movable relative to the body, allowing it to adjust its position to accommodate varying rail dimensions. The clamping block can move along the longitudinal axis and rotate about the transverse axis, providing dynamic adaptation to different rail profiles while maintaining reliable attachment through the camming mechanism.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The attachment mechanism changes geometric parameters through the camming action of the clamping block. As the clamping block moves and rotates, it alters the clamping force distribution and contact geometry to match different rail dimensional tolerances, enabling reliable attachment without increasing overall device complexity.

Inventive Principle:
Principle #35Parameter changes

2Adaptability or versatility

If adjustable clamping elements are added to accommodate varying dimensional tolerances, then adaptability is improved, but device complexity increases

Engineering Contradiction:
Improverail dimension adaptabilityVSAvoidclamp assembly complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The clamping block serves multiple functions: it provides the clamping force, accommodates varying rail dimensions through movement and rotation, and distributes the attachment load. This multi-functionality is achieved within a single component that integrates adjustment and securing mechanisms, thereby improving adaptability without proportionally increasing device complexity.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The clamping block's ability to move and rotate provides dynamic adjustment capability. This dynamic behavior allows the same clamping assembly to adapt to different rail profiles and dimensional tolerances, enhancing versatility while keeping the overall structure relatively simple through controlled degrees of freedom.

Inventive Principle:
Principle #15Dynamics

3Reliability

If a robust attachment method is used to ensure reliable attachment, then reliability is improved, but ease of operation deteriorates due to complex attachment procedures

Engineering Contradiction:
Improveattachment securityVSAvoidattachment ease
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The camming mechanism on the clamping block is designed to self-latch once engaged. The camming action automatically secures the rail in place without requiring continuous adjustment or complex fastening procedures. This self-service characteristic maintains reliable attachment while simplifying the operation to a straightforward engagement motion.

Inventive Principle:
Principle #25Self-service

Data Source

PatentUS9599431B2Device for attachment to a profiled rail
Publication Date: 2017.03.21 RM EQUIP INC
  • US9599431B2 patent drawing
  • US9599431B2 patent drawing
  • US9599431B2 patent drawing

AI summary

A device for selective affixation to a profiled rail is generally provided. The device generally includes a body and a clamp assembly operatively supported thereby. The body has an upper portion characterized by first and second opposing and spaced apart sidewall segments. The first sidewall segment has a profiled rail receiving surface and the second sidewall segment has a channeled face. The clamp assembly includes a clamping block adapted for advancement toward the profiled rail receiving surface of the first sidewall segment of the upper body portion, a portion of the clamping block pivotingly received by the channeled face of the second sidewall segment of the upper body portion so as to operatively self-seat the clamping block with a profiled rail interposed between the first sidewall segment and the clamping block of the clamp assembly upon advancement thereof.